To transform these from spurious words into real words, that is. After all, aren’t many words coined in such a way? “Neologisms”, I believe they are called.
erroneous forms due to a confusion between ABSOLUTE and OBSOLETE, which latter frequently appears as absolute even in good writers of 6-7, while absolute was similarly transformed into obsolute. The confusion was partly due to form, partly to sense 4 of ABSOLUTE, completed, finished; hence, by easy transition, done with.